The majority of Brits kick off their summer holiday diet in the beginning of July, so Greggs has launched an attractive diet that still lets followers indulge in bacon and sausage rolls as well as doughnuts.

Four dieters, including a new mother from Borehamwood, ate only from Gregg's month-long 'Minimise Me' diet plan. The group collectively dropped two stone and lost 14 inches from their waists.

The food-on-the-go retailer teamed up with dietician Laura Clark to create the 30-day plan as part of their healthier Balanced Choice items.

Miss Clark said the average person could lose 1-2lbs per week on the plan, which offers meals and snacks under 400 calories. Dieters can enjoy fan favorites like Greggs' doughnuts and baguette sandwiches as well as healthier items like porridge, salads and wraps.

Hannah Barth, the new mother from Borehamwood, wanted to lose her baby weight before she returned to her job in the fashion industry in September.

She said: “I put on a lot of weight during my pregnancy and have struggled to lose it since my son was born. Like any new mum I’m always rushing around so have found it difficult to find the time to diet. The Greggs Minimise Me plan was so simple to follow and incredibly convenient, making it easy to stay on track."

Mrs Barth said she lost more than one stone and is motivated to stick to a healthier lifestyle.

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The high street bakery polled 2,000 adults in June of this year and found that 63 per cent of Brits wait until July to eat healthier. Sixty percent aim to lose an average of 8lbs before they head off on their holidays.

Greggs released its healthy Balance Choice range in 2014 and reduced the overall fat content of its sandwiches by 12 per cent and salt by 16 per cent.

AFTER: Hannah Barth, a new mother from Borehamwood, lost 1 stone 3lbs in 30 days after taking part in the Greggs ‘Minimise Me’ experiment. (Image: Greggs, Taylor Herring)

Dietician Laura Clark’s top tips:

1. Monitor what you're eating either through a diary, online tool or quick photos taken on your phone. Raising awareness of the food you put in your mouth is a powerful first step and those that monitor their intake have been shown to double their weight loss.

2. Don’t be afraid of eating on the go – there are lots of healthier options out there. Try opting for a salad or low calorie wrap for your lunch.

3. Try to eat breakfast every day! This sets you up for the day. Porridge pots are a great option if you’re pushed for time and eating on the go.

4. Look at how much protein you’re eating. Regulating it across the day and including at each meal or snack can help to keep you fuller. Lean protein sources are best - chicken, eggs, fish and pulses for example. Look at the ways that fitting light exercise into your day can lead to a healthy lifestyle.

5. Regular exercise tends to breed healthier dietary habits. Using a step tracker to aim for the national guideline of 10,000 steps per day is a great start to burning more calories.

Greggs’ ‘Minimise Me’ eating plan caused the four dieters to drop at least one clothing size in four weeks (Image: Greggs)